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If the straight lines 2x+3y-3=0 and x+ky...

If the straight lines `2x+3y-3=0 and x+ky+7=0` are perpendicular, then the value of k is

A

44266

B

44503

C

minus 11/3

D

minus 3/11

Text Solution

Verified by Experts

The correct Answer is:
C
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HIMALAYA PUBLICATION-THREE DIMENSIONAL GEOMETRY-QUESTION BANK
  1. The angle between two lines (x+1)/2 =(y+3)/2 =(z-4)/(-1) and (x-4)/1 =...

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  2. The ratio in which the plane 4x+5y-3z=8 divides the line joining the p...

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  3. If the straight lines 2x+3y-3=0 and x+ky+7=0 are perpendicular, then t...

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  4. The acute angle between the planes x+3y-z+2=0 and 2 x-3y+z-1=0 is

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  5. The angle between the two planes 3x- 4y + 5z = 0 and 2x-y - 2z = 5 is ...

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  6. Distance between the parallel planes 2x-3y+4 z-1=0 and 4x-6y+8z+8=0 i...

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  7. The direction cosines of the normal to the plane 2x-2y+z-1 =0 are

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  8. The intercepts of the plane 3 x+4 y-5 z-4=0 on the coordinate axes are

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  9. A plane meets the coordinate axes at A, B, C such that the centroid of...

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  10. If the plane 3x+4y-3z+2=0 cuts the coordinate axes at A, B, C, then th...

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  11. A plane meets the coordinate axes at A, B, C such that the centroid of...

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  12. The plane x/4 + y/3 -z/5 =1 cuts the axes at A, B, C then the area of ...

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  13. The distance of the point (1,0,2) from the point of intersection of t...

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  14. The length of the perpendicular from the origin to the plane 3x+4y+12z...

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  15. Find the distance of the point (2,3,-5) from the plane r.(i+2j-2k)=9.

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  16. The foot of the perpendicular from (-2,3) to the line 2 x-y-3=0 is

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  17. The image of the point (- 1, 3, 4) in the plane: x-2y=0 is:

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  18. Find the image of (2,3) on the line 3x+5y=4.

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  19. If the planes vec r . (2i + lambda j +k) = 3 and vec r . (4i+j+muk) = ...

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  20. The angle between the lines (x+1)/2 = (y-2)/5 = (z+3)/4 and (x-1)/1 = ...

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